TY - JOUR
T1 - Shale gas produced water treatment using innovative microbial capacitive desalination cell
AU - Stoll, Zachary A.
AU - Forrestal, Casey
AU - Ren, Zhiyong
AU - Xu, Pei
N1 - Funding Information:
The authors are grateful to the technical support provided by Dr. Tzahi Y. Cath and Dr. Dean Heil at Colorado School of Mines, and Dr. Heming Wang at University of Colorado Boulder. Zachary Stoll and Pei Xu were supported by United States Geological Survey 104B Program, New Mexico Water Resources Research Institute, the US Research Partnership to Secure Energy for America (RPSEA) program Grant #11122-53, and Graduate Research Enhancement Grant of New Mexico State University. Casey Forrestal and Zhiyong Ren were supported by the US National Science Foundation under Award CBET-1235848.
Publisher Copyright:
© 2014 Elsevier B.V.
PY - 2015/1/1
Y1 - 2015/1/1
N2 - The rapid development of unconventional oil and gas production has generated large amounts of wastewater for disposal, raising significant environmental and public health concerns. Treatment and beneficial use of produced water presents many challenges due to its high concentrations of petroleum hydrocarbons and salinity. The objectives of this study were to investigate the feasibility of treating actual shale gas produced water using a bioelectrochemical system integrated with capacitive deionization-a microbial capacitive desalination cell (MCDC). Microbial degradation of organic compounds in the anode generated an electric potential that drove the desalination of produced water. Sorption and biodegradation resulted in a combined organic removal rate of 6.4. mg dissolved organic carbon per hour in the reactor, and the MCDC removed 36. mg salt per gram of carbon electrode per hour from produced water. This study is a proof-of-concept that the MCDC can be used to combine organic degradation with desalination of contaminated water without external energy input.
AB - The rapid development of unconventional oil and gas production has generated large amounts of wastewater for disposal, raising significant environmental and public health concerns. Treatment and beneficial use of produced water presents many challenges due to its high concentrations of petroleum hydrocarbons and salinity. The objectives of this study were to investigate the feasibility of treating actual shale gas produced water using a bioelectrochemical system integrated with capacitive deionization-a microbial capacitive desalination cell (MCDC). Microbial degradation of organic compounds in the anode generated an electric potential that drove the desalination of produced water. Sorption and biodegradation resulted in a combined organic removal rate of 6.4. mg dissolved organic carbon per hour in the reactor, and the MCDC removed 36. mg salt per gram of carbon electrode per hour from produced water. This study is a proof-of-concept that the MCDC can be used to combine organic degradation with desalination of contaminated water without external energy input.
KW - Bioelectrochemical processes
KW - Capacitive deionization
KW - Microbial desalination
KW - Organic removal
KW - Produced water treatment
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U2 - 10.1016/j.jhazmat.2014.10.015
DO - 10.1016/j.jhazmat.2014.10.015
M3 - Article
C2 - 25464328
AN - SCOPUS:84920089355
SN - 0304-3894
VL - 283
SP - 847
EP - 855
JO - Journal of Hazardous Materials
JF - Journal of Hazardous Materials
ER -